Fig. 1. Schematic diagram of the second-generation neutron scintillator detector's structure for CSNS

Fig. 2. Waveform of neutron signal

Fig. 3. Waveform of γ signal

Fig. 4. Schematic diagram of the signal processing method

Fig. 5. Schematic diagram of the test system

Fig. 6. Photograph of ASIC test board

Fig. 7. Digital readout board

Fig. 8. Configuration sequence diagram of CSNS_VASD chip

Fig. 9. Flow chart of data processing

Fig. 10. Distribution diagram of the nonlinear error

Fig. 11. Distribution diagram of the gain

Fig. 12. Snapshot of detection efficiency test of the detector in neutron beamline of CSNS

Fig. 13. Detector's uniformity before optimization

Fig. 14. Detector's uniformity after optimization